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Figure 2

From: Investigation of a tellurium-packed column for isolation of astatine-211 from irradiated bismuth targets and demonstration of a semi-automated system

Figure 2

Schematic of the semi-automated process of 211At isolation using a Te column. In the process two syringe pumps move the solvents and mixtures through valves (A–E). Numbered solutions are as follows: 1: 10 M HNO3; 2: air; 3: D.I. H2O; 4: 35% NH2OH⋅HCl; 5: 8 M HCl; 6: 1.5 M HCl; 7: 1 M NaOH. Waste 1: non-radioactive waste; Waste 2: radioactive waste. (Detailed description of equipment and reagents can be found in Fig. S1).

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